Jennifer's co-star, Josh Hutcherson, told New York Magazine's Vulture he pulled a prank on Jennifer that scared her so bad she peed her pants!

"I took a dummy, one that the tracker-jackers were supposed to have attacked, and I put it in Jennifer's bathroom, and when she opened the door, she peed her pants," Josh said. "Or so I was told — she told me later. I did not get visual confirmation on that one. I think I'm basically a 5-year-old at heart."